Air-cooling device



March 27, 1951 w 1 s ET AL 2,546,661

AIR-COOLING DEVICE Filed Dec. 28, 1948 2 Sheets-Sheet 1 INVENTORS.

@ DONALD A. WILLI 'V'TS,

arrow/E March 27, 1951 D. R. WILLIAMS ET AL. 2,546,661

AIR-COOLING DEVICE Filed Dec. 28, 1948 ZSheefca-Sheet 2 INVENTORS. DONALD R w/LL/AMS Rose RT 6. KIZER ATTORNE)" Patented Mar. 27, 1951 AIR-COOLING DEVICE Donald R. Williams, Dearborn, and Robert B Kizer, Melvindale, Mich.

Application December 28, 1948, Serial No. 67,723

Our invention relates to a new and useful improvement in an air cooling device adapted for use in circulating and cooling air as it is circulated.

It is an object of the invention to provide a device of this class which will be simple in structure, economical of manufacture, durable, compact, and highly efficient in use. Another object of the invention is the provision of an air cooling device of this class in which a cooling liquid may be vaporized and the Vapor subjected to a condensing by circulating through a cooling container while at the same time using the cool circulating air for cooling the liquid which circulates through the container.

Another object of the invention is the provision of a device of this class which may be operated with slow speed and yet produce a maximum of cooling.

Another object of the invention is the provision in a device of this class of a circulating mechanism which may be adjusted to various volumes and capacities.

Another object of the invention is the provision of an air cooling structure which will be sanitary and safe.

Other objects will appear hereinafter.

It is recognized that various modifications and changes may be made in the detail of structure without departing from the invention, and such are within the contemplation of this specificaw tion.

Forming a part of this specification are drawings in which:

Fig. 1 is a diagrammatic view of the invention illustrating certain parts in section,

Fig. 2 is a slightly enlarged fragmentary view taken on line 22 of Fig. 1,

an opening [3 which is closed by a suitable screen 14, communicating-with which is a conduit l5,

" which communicates with the interior of the box or housing It to provide an inlet for a blower ll communicating with the box or housing [6 to prov 9 Claims. (Cl. 62- 129) 2 vide an outlet and connected to a suitable nozzle I8, which is positioned in an opening 19 formed in the wall I2;

Positioned within the box or housing I6 is a container 20, communicating with which is an inlet delivery pipe 2|, which leads into the valve housing 22, in which is positioned a-valve 23controlled by the rockable beam 24 pivotally mounted on the standard 26, this beam 24 being provided with a float 25 so that liquid contained within the container 20 will serve to rock the beam 24 and move the valve 23 into closing position when the liquidhas risen to a predetermined height. An outlet pipe 21 communicates'with the valve housing 22 and also with a header or manifold 28, leading from which there is a plurality of tubes 29 each having a constricted portion 3!] provided intermediate its ends and provided with a baffle 3|. These tubes 29 communicate with the interior of the container 20 through the bottom thereof. g

The inlet delivery pipe 2| communicates with a coil 32 positioned in the interior 14 of the container 33, and this coil 32 communicates .by the pipe 34 through the check valve 35 with one end 36 of a cylinder 36a, in which is slidably mounted a piston 31. The pipe 34 also communicates with the opposite side 39 of the cylinder 35a through the check valve 38. A vapor outlet pipe 40 communicates with the container 20 adjacent the upper end thereof and through the check valve 4| with the side 36 of the cylinder and through the check valve 42 with the side 39 of the cylinder 36a.

The piston 31 is provided with a piston rod 43.

As shown in Fig. 2, the piston rod 43 slidably projects through collars 44 carried by the brackets 46 which are mounted on the wall 45. An opening 41 is provided in the rod 43 through which extends a rod 48. The rod 48 projects, intermediate its. ends, through a sleeve 49 in which is provided a plurality of openings 5!], as shown in Fig. 1, and through one of these openings, as shown in Fig. 4, is extended a bolt 5|, which also extends through the bight 52 of a bracket mounted on the wall 45 so that the rod 48 is thus pivotally mounted on the bolt 5|.

This rod 46 extends through-the block 53 in which is formed a pocket 54' in which engages a nut 56 on the studs 55. This block 53 is rotatable on the stud 55, and the rod 48 is slidable in the block 53. This stud is fixedly mounted on a suitable bracket 51 which is connected to the links 58 of a chain belt 59 which passes around the sprocket wheel 60 and the sprocket wheel 6|.

3 This sprocket wheel 6! is driven through the sprocket wheel 63 and the belt 62, as shown in Fig. 1, by the sprocket 64, which is driven by an electric motor 65.

The pipe 40, as shown in Fig. 1, is provided with a by-pass 66 which leads into a pressure switch housing 6'! to control the circuit to the motor 65, and in this circuit 68 is also'mounted a handoperated' switch 69.

An outlet delivery pipe 10 communicates with the container 33 and connects to a pump l. pipe 10 then communicates or is turned."v into a coil 12 positioned within the box or housing It in the path of the air which is passing through the box. The opposite end of the coil i2 iscon'nected by the pipe 13 with the interiorl l of the container 33. A thermostat having a part 15 projecting into the container 33 is mounted onthe outer surface of the container 33, this thermostat 16 serving to control the circuit"'|8 toth'e electrically-driven pump H In Fig. 5 we have shown an applicationmf the device whereinthe box embodying the sidewall Qis mounted on-the back 19 of aseat 85 positioned rearwardly of asteering w-heel 8 l. Thisis'mer'ely to illustrate an application-of the: invention, and merely illustrates one us'epf it.

In use, acertain quantity of volatile liquid such as methyl chloride isdeposited irI'the .coritainer 20'and the moto'r 65 is set-into operation so as-to reciprocate'the' piston 31-. A's th'e pistonre ciprocates; the vapor in the upper part of 'a. coritainer 20 will bedrawn oif through the pipe 40, and'as the piston 31 m'oves'to theleft, this vapor will pass through the check valve ii-into the section 36 of the cylinder 36w, the check valve 35 being movedto closed position. Atthe same time, the check valve 3'8 w-i1l"be open and the check valve 42will'beclosed', Upon'th'e 'opposite stroke, that is, when the piston 3! moves to the right',.the vapor through the pipe 40' will pass through the check valve 42 into the side 33 of. the cylinder, and 'in this movement the check valve 4| will. be closed, as will likewise the check valve38', while the check valve 35 will be open. The vapor drawn into the section 35- of the cylinder will then be forced through the pipe 34 and: through the coil 32, where this vapor will become cooled and condensed so that it may be delivered in a cooled condition to the container 2i :-v On' the reverse stroke, the vapor drawn into the section 39"wi'll be expelled through the check valve 382 and pass through the cooling coil 32. Contained within the'container 33 is-a quantity of cooling'mat'erial such as water or the like, which serves'to maintain the coil 32 in a cooled condition: This cooled liquid will 'pass through the pipe'2l to the valve housing and through thepip'e 2'! intdthe header 28', and through the tubes 29' into the-'container 20, the bafile members 3! serving as fins. The air blown across these tubes will become cool, so that as it'issues from the nozzle: it? it will be-co'ol In this manner, it becomes possible to cool'a large quantity of air depending upon the capacity of the blower l 'l';

Should the pressure'of the. vapor in the container 2B or the" line 40' become excessive, this would operate the pressure switch 61 so as to set the motor 65 into operation and draw off the vapor from the container. 2t. It is possible that it will not be necessary to. maintainthe circulation of'the coolant which is in: the container 33 constantly, and this will be controlled by the thermostatic switch 16 so that the circulation of This 4 the coolant through the coil 12 may thus be determined.

It is believed obvious that by moving the bolt 5| to various openings 50, the throw of the rod 48 may be varied, thus shortening or lengthening the stroke of the piston 31 and thus increasing or decreasing the amount of fluid which is being circula'ted bymeans of the pi'stonz 31 The mounting of therod 48 upon the belt 59 is such that the block 53 will ride around the sprockets 60 and GI without interference.

Inthis':v manner, we have provided an ir cooling device which is believed to obtain the varione-advantageous features herein set out as well as" others and which has proven most efiicient as anair. cooling. mechanism.

What we claim as new is:

1. In an air cooling device of the class described, comprising: a housing having an air inletand" an. air outlet; at container positioned within said housing'adaptedifor' the reception of a volatile liquid; a manifold; apluralityof tubes establishing communication with said manifold and with said container: through. the bottom thereof; a valve: housing positioned .withinsaid container; an outlet conduit communicatingwith said valve housingifor conducting liquid tosaid manifold; an lIl'lElT'OOIIdHitZ for conductingqliquid into said valvehousing; a valve insaid housing; a

rockabl'e beam adaptedi upon rocking. in one dizrectionfor opening said valve"; and a: float mount.- ed on said beam. and adapted upon rising of liquid in said container to'a predetermined height for rocking said beaminthe opposite direction to close said valve;

2. In an air cooling device of the class described, comprising a: housing having an air inlet and an air outlet; a container positioned within said housing adapted forthe reception of a volatile liquid; a, manifold; a-pluralityof tubes establishing communication with said manifold and with said container through the bottom thereof avalve housing; positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid; to said manifold; an inlet conduit for-conducting liquid into-said valve housing; a valve in: said housing; a rockable beam adapted. uponrocking in one; direction for opening said valve; and afloat mounted' on said beam and? adapted upon rising of liquid in said container to a predetermined height for rocking said beam in the opposite direction to close said valve; and a vapor outlet pipe communicating with said container above. the liquid level thereof for conductingvapors iromsaid housing.

3. In an air cooling, device; of the classdescribed, comprising: a housing havin an air inlet and an air outlet; a container positioned within said housing-adapted for the reception of a volatile liquid; a manifold; a plurality of. tubes establishing communication with said manifold and with said container through the bottom thereof; a valve housing positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid to said manifold; an inlet conduit for conducting liquid into said valve: housing; a'valvein said housing; a rockable beam adapted upon rocking in one direction for opening said. valve; a float mounted on saidbeam. and adapted} upon rising of liquid in said container. to, apredetermined height-for rocking said beam in the. opposite direction to closesaid valve; and av vapor outlet pipe communicating with said container site sides of said piston; and a check valve in 7 said vapor outlet pipe and said cylinder at each side of said piston for controlling the flow of fluid into said cylinder upon movement of said piston in either direction relatively to said cylinder.

4. In an air coo-ling device of the class described, comprising: a housing having an air inlet and an air outlet; a container positioned within said housing adapted for the reception of a volatile liquid; a manifold; a plurality of tubes establishing communication with said manifold and with said container through the bottom thereof; a valve housing positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid to said manifold; an inlet conduit for conducting liquid into said valvehousing; a Valve in saidhousing; a rockable beam adapted upon rocking in one direction for opening said valve; and a float mounted on said beam and adapted upon rising ofliquid in said container to a predetermined height for rocking said beam in the opposite direction to close said valve; and a vapor outlet pipe-communicating with said container above the liquid level thereof for conducting vapors from said housing; a cylinder; a piston reciprocating in said cylinder, said vapor outlet pipe communicating with said cylinder at opposite sides of said piston; and a check valve in said vapor outlet pipe and said cylinder at each side of said piston for controlling the flow of fluid into said cylinder upon movement of said piston in either direction relatively to said cylinder; a pair of outlet pipes each communicating with said cylinder at opposite sides of said piston; a check valve at each of said outlet pipes for controlling the flow of fluid outwardly from said cylinder upon movement of said piston in either direction, said outlet delivery pipes communicating with said inlet delivery pipe which communicates with said valve housing.

5. In an air cooling device of the class described, comprising: a housing having an air inlet and an air outlet; a container positioned within said housin adapted for the reception of a volatile liquid; a manifold; a plurality of tubes establishing communication with said manifold and with said container through the bottom thereof; a valve housing positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid to said manifold; an inlet conduit for conducting liquid into said valve housing; a valve in said housing; a rockable beam adapted upon rocking ingone direction for opening said valves; and a float mounted on said beam and adapted upon rising of liquid in said container to a predetermined height for rocking said beam in the opposite direction to close said valve; and a vapor outlet pipe communicating with said container above the liquid level thereof for conducting vapors from said housing; a cylinder; a piston reciprocating in said cylinder, said vapor outlet pipe communicating with said cylinder at opposite sides of said piston; and a Icheckvalve in said vapor outlet pipe andsaid' 'cylinder ateach side of said piston for controlling the flow of fluid into said cylinder. upon movement of said piston in either direction relatively to said cylinder; a pair of outlet pipes 'each communicating with said cylinder at opposite sides of said piston;.a"check valve at each of said outlet pipes forfcontrollin'g the flow of fluid outwardly from said cylinder upon movement of said piston in either direction, said outlet delivery pipes communicating with said inlet delivery pipe which communicates with said valve housing; a coolant container; a coil in said coolant container, said coil being connected to said outlet delivery pipes which communicate with said cylinder and to the pipe whichcommunicates as an inlet pipe to said valve housing.

6. In an air cooling device of the class described, comprising: a housing having an air inlet and an air outlet; a container positioned within said housing adapted for the reception of a volatile liquid; a manifold; a plurality of tubes establishingcommunication with said manifold and with said container through the bottom thereof; a valve housing positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid to said manifold; an inlet conduit for conducting liquid into said valvehousing; a valve in said housing; a rockable beam adapted upon rocking in one direction for opening said valve; and a float mounted on said beam and adapted upon rising of liquid in said container to a predetermined height for rocking said beam in the opposite direction to close said valve; anda vapor outlet pipe communicating with said container above the liquid level thereof for conducting vapors from said housing; a cylinder; a piston reciprocating in said cylinder, said vapor outlet pipe communicating with said cylinder at opposite sides of said piston; and a check valve in said vapor outlet pipe and said cylinder at each side of said piston for controlling the flow of fluid into said cylinder upon movement of said piston in either direction relatively to said cylinder; a pair of outlet pipes each communicating 'with said cylinder at opposite sides of said piston; a check valve at each of said outlet pipes for controlling the flow of fluid outwardly from said cylinder upon movement of said piston in either direction, said outlet delivery pipes communicating with said inlet delivery pipe which communicates with said valve housing; a coolant container; a coil in said coolant container, said coil being connected to said outlet delivery pipes which communicate with said cylinder and to the pipe which communicates as an inlet pipe to said valve housing; and a cooling coil communicating with said coolant container for conducting liquid therefrom into the path of air passing through said housing.

7. In an air cooling device of the class described, comprising: a housing having an air inlet and an air outlet; a container positioned within said housing adapted for the reception of a volatile liquid; a manifold; a plurality of tubes establishing communication With said manifold and with said container through the bottom thereof; a valve housing positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid to said manifold; an inlet conduit for conducting liquid into said valve housing; a valve in said housing; a rockable beam adapted upon rocking in one;;direction for opening said valve; and a float mounted on said beam and adapted upon rising of-liquid in said container to a predeter mined height for rocking said beam in the opposite direction to close said valve; and a vapor outlet pipe communicating with said container a saejaei above the liquid level thereof "for conducting vapors from said housing; a cylinder; 2, piston reciprocating in said cylinder, said vapor outlet pipe communicating with said cylinder at oppo- 'site sides of said piston; and a check valve m said vapor outlet pipe and said cylinder at each side of said piston for controlling the flow of fluid into said cylinder upon movement of said piston in either direction relatively to said cylinder; a pair of outlet pipes each communicating with said cylinder at opposite sides of said piston; a check valve at each of said outlet pipes for controlling the flow of fluid outwardly from said cylinder upon movement of said piston in either direction, said outlet delivery pipes communicating with'said inlet delivery pipe which communicates with said valve housing; a coolant container; a coil in said coolant container, said coil being connected to said outlet delivery pipes which communicate with said cylinder and to the pipe which communicates as an inlet pipe to said valve housing; and a cooling coil communieating with said coolant container for conducting liquid therefrom into the path of air passing through said housing; a roekable arm for reeiprocating said piston; a sleeve, said arm projecting through said sleeve; a pivot pin for pivotally mounting said arm intermediate its ends on said sleeve at various positions thereon.

8. In an air cooling device of the class described, comprising: a housing having an air inlet and an air outlet; a container positioned 7 within said housing adapted for the reception of a volatile liquid; amanifold; a plurality of tubes establishing communication with said manifold and with said container through the bottom thereof; a. valve housing positioned within said container; an outlet conduit communicating with said valve housing for conducting liquid to said manifold; an inlet conduit for conducting liquid into said valve housing; a valve in said housing; a roekable beam adapted upon rocking in one direction for opening said valve; and a float mounted on said beam and adapted upon rising of liquid in said container to a predetermined height for rocking said beam in the opposite direction to close said valve; and a vapor outlet pipe communicating withsaid container above the liquid level thereof for conducting vapors from said housing; a cylinder; a piston reciprocating in said cylinder, said vapor outlet pipe communicating with said cylinder at oppo site sides of said piston; anda check valve in said vapor outlet pipe and said cylinder at each side of said piston for controlling the flow of fluid into said cylinder upon movement of said piston in either direction relatively to said cylinder; a pair of outlet pipes each communicating with said cylinder at opposite sides of said piston; a check valve at each of said outlet pipes for controlling the flow of fluid outwardly from said cylinder upon movement of said piston in either direction, said outlet delivery pipes communicating with said inlet delivery pipe which communicates with said valve housing; a coolant container; a coil in said coolant container, said coil being connected to said outlet delivery pipes which communicate with said cylinder and to the pipe which communicates as an inlet pipe to said valve housing; and a cooling coil communieating with said coolant container for. conductingliquid therefrom into the path of air passing through said housing; a rocliable arm for re- 8 ciproeatin'g said pistbn; a sleeve, said arm pro= je'ct'ing through said sleeve; a pivot pin for piv otally mounting said arm intermediate its ends on said sleeve at various positions thereon; and means for rocking "said arm in opposite directions.

9 In an air cooling device of theclass de--;

scribed, comprising: a housing having an air inlet and an air outlet; a container positioned within said housing adapted for the reception of a volatile liquid; a manifold; a plurality of tubes establishing communication with said manifold and with said container through the bottom thereof; a valve housing positioned within said ccmainer; an outlet conduit communicating with said valve housingfor conducting liquid to said manifold; an inlet conduit for conducting liquid into said valve housing; a valve in said housing; a rockable beam adapted upon rocking in one direction for opening said valve; and a float mounted on said beam and adapted upon rising of liquid in said container to a predetermined height for rocking said beam in the opposite direction to close said valve; and a vapor outlet pipe communicating with said container above the liquid level thereof for conducting vapors from said housing; a cylinder; a piston reciprocating in said cylinder, said vapor outlet pipe communicating with said cylinder at opposite sides of said piston; and a check valve in said vapor outlet pipe and said cylinder at each sideof said piston for controlling the now of fluid into said cylinder upon movement of said piston in either direction relatively to said cylinder; a pair of outlet pipes each communicating with said cylinder at opposite sides of said piston"; a check valve at each of said outlet pipes for controlling the flow of fluid outwardly from said cylinder upon movement of said piston in either direction, said outlet delivery pipes communieating with said inlet delivery pipe which communieates with said valve housing; a coolant container; a coil in said coolant container, said coil being connected to said outlet delivery pipes which communicate with said cylinder and to the pipe which communicates as an inlet pipe to said valve housing; and a cooling co-il communicating with "said coolant container for conducting liquid therefrom into the path of air passing through said housing; a rockable arm for reciprocating said piston; a sleeve, said arm projecting through said sleeve; a pivot pin for pivotally mounting said arm intermediate its ends on said sleeve at various positions thereon; and means for rock"- ing said arm in opposite directions, said tubes communicating with said manifold being con strieted intermediate their. ends; and a radiating pin mounted on each of said tubes at the constrieted portion.

DONALD R. WILLIAMS.

ROBERT B KIZER.

REFERENCES CITED fihe 'fellowing references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,788,343 Peltier Jan. 6, 1931 1,833,892 DeWaal Dec. 1, 1931 1,862,657 Breidenthal June 14, 1932 l;994,037 1935 

